180016812 has 36 divisors (see below), whose sum is σ = 456071616. Its totient is φ = 59869920.

The previous prime is 180016801. The next prime is 180016813. The reversal of 180016812 is 218610081.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (180016813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11173 + ... + 22019.

It is an arithmetic number, because the mean of its divisors is an integer number (12668656).

Almost surely, 2^180016812 is an apocalyptic number.

180016812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180016812 is an abundant number, since it is smaller than the sum of its proper divisors (276054804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180016812 is a wasteful number, since it uses less digits than its factorization.

180016812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11318 (or 11313 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 180016812 is about 13417.0343966169. The cubic root of 180016812 is about 564.6391953344.

Adding to 180016812 its reverse (218610081), we get a palindrome (398626893).

The spelling of 180016812 in words is "one hundred eighty million, sixteen thousand, eight hundred twelve".